The first trial is to test your ability to work underwater under pressure.
You are tasked to find a Shrine Bauble in Lake Elune'ara,
and to use it at the Shrine of Remulos. Further, you have to
accomplish this within only a limited period of time.

You dive in to the lake, and are thankful that there are no predators
in the lake. Various fissures in the lake floor bubble with air being released. You take advantage of these in your search, and eventually
find an urn holding the bauble.

Tajarri directs you to reunite the halves of the
Pendant of the Sea Lion, and present the pendant to
Dendrite Starblaze. She does not tell you where the pieces can be
found, only that you should talk to the citizens of Moonglade for more information.

You find people in Moonglade with knowledge of the pendant halves,
and you set off.

The Half Pendant of Aquatic Agility you find in a small coffer in
predator-infested waters. You exercise judgment and agility in evading
many of the predators, and some skill in combat in defeating those you
are unable to evade.

The Half Pendant of Aquatic Endurance, though, entails much travel.
First, you need travel to a quite distant place. Once there, you are
required both to search, and to dive very deeply to locate.